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A099668
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a[n] is the largest prime before A002282[n] repdigits.
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10
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7, 83, 887, 8887, 88883, 888887, 8888861, 88888883, 888888887, 8888888837, 88888888859, 888888888887, 8888888888857, 88888888888873, 888888888888883, 8888888888888753, 88888888888888801, 888888888888888859
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..18.
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EXAMPLE
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n=2: 83 is before 88.
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MATHEMATICA
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<<NumberTheory`NumberTheoryFunctions` Table[Table[PreviousPrime[8*(10^n-1)/9], {n, 1, 35}]
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CROSSREFS
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Cf. A003618, A003617, A096497, A096498, A068104, A002275-A002283, A099656-A099667.
Sequence in context: A141872 A089342 A075137 * A187649 A053128 A027819
Adjacent sequences: A099665 A099666 A099667 * A099669 A099670 A099671
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KEYWORD
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base,nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Nov 17 2004
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STATUS
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approved
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